Non-invasive near infrared measurement of blood analyte concentrations

摘要: A non-invasive apparatus and related method for measuring the concentration of glucose or other blood analytes utilizes both diffuse reflected transmissive infrared absorption measurements may be applied to either in vitro vivo sampling. The utilize non-dispersive correlation spectrometry apply it liquid serum analysis. Spectrally-modified near light from sample containing analyte is split into two beams, one which directed through a negative filter blocks bands measured, neutral density capable blocking equally at all wavelengths range interest. Differencing intensity between paths provides measure proportional concentration.